Hub.



H. W. SANFORD.

HUB. APPLIOATIQN FILED AUG;14, i913 Wm. M MW w a 4 WW Patented 1511.27, 1914.

. ,2 8HEBTS-SEEET 2.

awuemtoz:

H. W; SANFORD.

v I HUB. APPLIGATIQH FILED we. 14, 1913 m i n l I the invention are primarily designed for.-

UNITED STATES PATENT oFnIoE.

HUGH 'w. SANFORD, or KNokvrLrZlufitiinn-Ess'itri i HUB.

Spec ification'of Letters Patent,

i ateateu Jan. 27, 1'9"1'4.

Application filed August 14, 1 13. SerialiNo i 'l3: 4;7 9 9.

ToaZZ 10/10m it may 00 m V Bjglt known that I, "HUGH \V. SANFORD, a c1 zen of the United btates, residin'gat Knoxville, in the county 'ofKnox'ia-nd State of Tennessee, have invented certainjn'ew and useful Improvements inHubs, ofwhich thefollowing is a specification,- reference being had therein to the accompanying drawing This invention relates to'car wheels, and

while not limited to such use, the wheels of mining car service. In constructions of this character, it is customary to provide a wheel hub having an inner chamber adapted for the reception of the end of an axle, the wheel being rotatable relative to the axle, 'an'd'the hub .chamber'being designed to contain a suitable lubricant.

Various means have been devised for supporting the hub of wheels of this character upon the axle, a commonly used construction being toprovide a loose collar upon' the axle adjacent its end to engage a projection of the hub and'limit movement of the axle in one direction,;the reverse-movement of the axle. being limited by a suitable abutment on the hub cap, which latter is removable whereby to gain access to the interior of the hub and to permit of the removal of the washer, This construction has proven unsatisfactory to a large extent because of the incident leakage of oil at the'joints and the caps oftentimes become broken, loose and lost. These objections have led to the suggestion of a solid hub construction, that is one having an integral cap and a longitudinal bore, a retaining collar on the axle being employed as before but it was necessary to set the collar into the core employed in cast ing the hub. While this construction proved satisfactory to an extent, at the same time it was open to the objection, among others, that the washer was permanently positioned in I thehub chambenand could not be removed .45 broken or damaged or worn out.

or replaced, shouldthe washer become The present invention is designed to overcome the above and other objections inci dent to wheels of the character above described, and other wheels as at present in general use, and may he-said'to reside in a novel construction and arrangement of parts cooperating to produce a simple, 'inexpensive, durable and highly efficient wheel, and one in which novel supporting means for the axle is provided, the same permitting ready removal and replacing of parts as occasion demands.

More --particularly, the invention includes ahollow hub member having an integral.

closed outer end, an axle'loosely mounted in tl 1e'hollow hub, the closed end.of the hub forming an abutment for the end of the axle, and an apertured collar being provided for the axle'wit'hin the hub adapted to engage a wall of the hub to limit the movefment of the axle in an opposite direction, the collar and hub end opening being designed and arranged whereby the collar may be removed by an edge-wise movement through the opening upon the removal of the axle.

Other improvements and novel details in the construction and arrangement of parts will be more-particularly referred tohereinatter, in the" description, which, for a clear understanding thereof, should be read in connection with the accompanying drawings, forming a-part hereof, and wherein is disclosed for the purpose' of illustration, convenient and satisfactory embodiments of the invention.

In the drawings: igure 1 is a longitudinal section of a wheel and hub with an axle applied thereto: Figs. 2,-2 and 3 are detail sectional views: Fig. 4 is a longitudinal section of a modified form of construction,

and Figs. 5-and 6 are detail views of secend of the axle 8 ispreferably cylindrical in cross section, and the periphery thereof is smooth and continuous throughout. A suitable steel lining'9 overlies the inner periphery' of the inner wall opening of the hub, :lndinterposed between said lining and axle are a series of roller bearings 10.

'From' the c'onstruction'thus far described, it will'be observed that the hub and wheel are'a-dapted -toi rotate relative to the-axle, andthe afxlejmay bereadily inserted and reopen end of the hub into the chamber 3. The

moved through the inner wallopening. The

closed end 4 of the hub is conveniently enlarged, as at 46, whereby it constitutes an abutment for the end of the axle 8. Movement of the axle in an opposite direction is limited by'a washer 11 of a size'to overlie the wallrof the. opening.at the inner side of the hub. The washer-11 is preferably diskshaped andhas a central aperture whereby it may be sleeved upon the axle. The washer is held in place as by a suitable cotter-pin 12 passing through a transverse aperture 13 in the axle. -The cotter-pin is removable from the axle and also from the hub, through 'asuitable opening 14:, which said opening is normally closed through the medium of a threaded bolt 15. The hub is also preferably provided with an opening 16 adapted to receive a threaded bolt 17, and in this connection, it will be observed that the pin may be inserted through one of said openings and through the transverse opening 13 of the axle, and the pin arms 12 separated by inserting a suitable tool through the oppotrated in Figs. 1 to 3 of the drawings, it will be observed that the washer, as illustrated in said Figs. 1 to 3, is substantially'elliptical in outline, and the inlet openi g at the inner side of the hub substantiall cylindrical.

The greatest diameter of the washer is greater than that of the cylindrical opening, to the end that when the washer is in position on the axle, the same cannot be re- 'moved through the hub opening. When,

however, it is desired to remove the washer, the cotter-pin is removed from the axle, the axle withdrawn from the hub, and the washer turned edgewise and removed through said opening, the shortest. diameter of the washer being less than that of the opening. In applying the washer, the same is passed through the'open slde, whe n 1n edgewise position, and assumes a posltion in the enlarged chamber3 of thehub. The axle is then inserted through the hub open: ing', the washer sleeved upon the end thereof, and the cotter-pin posit oned on the axle. When in this position, the inner surface of the collar constituts -a smooth bearing, en-

. movement of gaging the wall of the "hub, in the rotary the wheel, the wheel and the cotter-pin coacting to hold the washer' 1n n'm'mal positionfahtl the enlarged port-Ion 4* ofthe closed end of the hub forming a bearing for the end of the axle, as is obvious.

In the modified construction illustrated in Figs. 4 to 6, the hub 2 for the wheel 1 (broken away) is closed at its rear end l and open at its front endor inner side 5*,

the hu'bbeing'hollow to form a chamber 3-".

In this construction the chamber 3 may be substantially the same size as the opening 5 anannular flange h being interposed between the ends of the inner Wall of the hub. The flange 6 forms an abutment for one end of'the steel lining 9 and roller bearings 10. The roller.bearings are adapted to constitute an anti-friction support for the axle 6 which latter projects at its end to a point adjacentthe enlarged portion of the rear end of the hub 4 which said enlarged portion constitutes an abutment. The hub is provided with threaded plugs 15 and 17 for assembling the cotter-pin 1'2 through an aperture in the axle, in the manner previously described, when referring to the other form of myconstruction.

In the present illustrative embodiment of my invention. the .washempreferably formed .of a steel disk, takes a circular form. and is given the numeral 11. On the other hand.

the opening formed bythe flange 6" is substantially elliptical, as illustrated in Fig. (l. to the end that the washer when in position on the shaft and held in place by the cotter pin 12, is adapted to engage behind the rear wall of. the flange 6 and form asmooth bearing, the flange or shoulder 6* cotjperat-'- ing withthe pin 12 to prevent withdrawal of the axle from'the hub. When it is desired to remove the washer 11", the cotter pin is removed from the axle, and the axle removed from the hub when the washer,'by

being-turned to an edgewise position, may

be withdrawn through'the openi'ngfm'med by the flange 6 of; the inner wall of the. hub.

The diameter of the circular diskshaped washer 11 is greater than'the smaller diameter of the opening fornie the shoulder 6", and smaller than the er diameter of said opening.

In boththe illustrative embodiments. of my invention, it will be appreciated that while the axle is effectively locked in position by the washer, the hub and wheel may be also removed from the hub and axle, .and the washer may be also removed from the hub and axle, and this without interfering with the oil tight characteristic of the hub. In both illustrations, the, washer is removed or inserted by positioning the same "edgewise, and bringing the smallest diamewi th-this in view, in but-h of gthe illustrated embodiments of my invention ll preferably i provide a clearance-space '18 between the pedestal and wheel hub and remPvably position on the end of the hub a retaining washer 19, secured as by screws The washer is oi a size to overlie the end of the :roller bearings 1Q, .wherebyrontact of the latter witli'the pedestal is avoided. Vheu tl1e:'wasl1er is employed as -just described,

it will of course be necessary to first detach the same by removingtue retaining screws,

. l! the case may be, from the. axle.

WVhat I claim is:-

1. In a device of the character described,

before withdrawin -the washer 11 or 11 as the cmnbination of ahollow hub open at one end, anlaxle insertible through said opening, a disk-shaped washerot' rigid construeproportioned that the washer may be 111-- when in edgewise position only.

tion loosely positioned in the hollow hub, '29

and having an aperture to receive the axle, the said washer and end opening bemgso.

sorted and .;reuiored through the --opening :2: In a device of the character described,

[fhe combination of a hollow hubopen at one end, an axle insertible through. said end opening, a disk-shaped washer loosely .po-

' sitioned in the hollow hub, and having an aperture to receive the axle, the greatest diameter of the end opening being greater than one diameter of the washer, and the washer having a maximum diameter greater than one diameter of said opening, whereby the wall or" the hub surrounding said openingforms aside bearing for the washer when the latter is in normal position on the axle, and whereby said washer may be removed from the hub opening edgewise.

In a wheel construction, a hub having a closed outer end, an interior chamber, and a connecting inner .end opening, a rotatable shaft having an and projecting through said end opening into the hub chamber, a washer positioned in said chamber, and pro rided with an aperture to receive the shaft, means for limiting the outward sliding movement of the washer on the shaft, and a part of the hub limiting the inward movenien'tof the washer, one of the parts comprising the Washer, and the-hub'end opening being substantially "elliptical, and the other ,of said parts substantially circular,

whereby the Washer may be inserted and removed through'said opening. 4. 1n a-wheel construction, the combinationofa wheel having a hollow hub with a fastener on the axlein substantial alinementwith said closed opening, a detachable disk sha Jed washer lo'osel sleeved on the'axleat a point between said-fastening means, and said shoulder, the said washer being of asize'to overlieithe opening in the side of the hub and removable through said opening. v

5. In a car wheel, the combination of a.

wheelv havingan elongated hollow hub forming an interior chamber, the hub having an integral closed outer end, an open inner end,,and an interior annular shoulder intermediate its ends, the said shoulder having oppositely. out out or reduced portions,

an axle loosely passing through the open end 'of the hub to a point adjacent the closed rear-end, a washer loosely sleeved on .the

axle at a point between the shoulder and closed rear end, a releasable retaining member cooperating with said shoulder to maintain thewasher inplace, and said washer n 0 o I I a comprising asubstantially circular disk of a size to readily-pass through the opening formed by said reduced portions of said shoulder. when removed from the axle, and of a size to abut the greater portion of the shoulder when in position on the axle.

In testimon whereof I afiix my signature in presence 0 two witnesses.

. HUGH W. SANFORD,

Witnesses:

j "J. ANTRo FLEBBY,

J. S. GREEN.- 

